Grinding-mill



(No Model.

0. O. BURNER; GRINDING MILL.

N0. 299,340. Patented May: 27, 1884.

% INVENTOR: CZZcZS. CEurfif/P WITNESSES WWW BY fg ATTORNEYS.

lhvi'rnp CHARLES CAMERON BURNER, OF TRAVELLERS REPOSE, \VEST VIRGINIA.

GRINDINGHVHLL.

SPECIFICATION forming part of Letters Patent No. 299,340, dated May 27,1884.

Application filed March 28, 1884. (N0 model.)

.To all whom it may concern:

Be it known that I, CHARLES CAMERON BUR- NER, a citizen of the UnitedStates, residing at Travellers Repose, in the county of Pocahontas andState of \Vest Virginia, have invented certain new and usefulImprovements in Grinding-Mills, of which the following is a description.

This invention relates to mills used for grinding apples into pomacepreparatory to making cider thereof, and more particularly to that classof mills in which cogs slide out and in from a revolving wheel to crushthe apples against a stationary opposite part.

The object of this invention is to provide means whereby the cogs may beslid out and in with mechanical certainty and ease, means whereby theapples may be gradually reduced to the fineness required, means wherebythe cog-mortises may be kept clear, and means for cleaning the face ofthe revolving wheel.

To this end my'invention consistsin the construction and combination ofparts hereinafter described and claimed, reference being had to theaccompanying drawings, in which Figure 1 is a plan View of my mill, aportion being broken away. Fig. 2 is an end view of the samewith thehopper removed and a portion broken away. Fig. 3 is a centrallongitudinal vertical section, part in elevation, and Fig. 4 is a detailin section.

A represents the stationary frame of the mill. ]3 is a cylindrical hubfixed thereon, having one or more reverse spiral flanges, a, upon whichthe cogs 0 rise and fall as they are revolved with the wheel D, which isjournaled to revolve upon the hub. These cogs stand in radial grooves inthe wheel, and the wall of each groove on the front side of the cog isre cessed at b, to form an escape for any pomace that may be crowdedinto the slot. This recess increases in size from the top downward andradially toward center, like a spout, in order that the pomace gatheredtherein may naturally work into the annular space 0 between the hub andthe lower portion of the wheel, and drop thence into the trough E.

The machine is here shown as double, having two sets of fixedgrinding-teeth, d, in the upper head, G. F is the hopper, having twoinlets, 0, one to each set of teeth. Each set of teeth d is a series ofinverted spiral steps,

gradually decreasing in height from the first tooth, d, to the last one,d. The spiral flanges a are so circumierentially located relatively toeach set of teeth that the cogs are raised thereby to their highestlevel just before they pass under the first tooth, cl, and then theybegin to descend, gradually approaching nearer to the teeth until, asthey pass under the last tooth, they nearly touch it. By this means thecogs stand nearly as high as the apples when the latter are received,and the opposing teeth are at first so large as merely to split andbreak up the apples; but as the cogs advance, carrying the broken applesalong, the parts of the latter are again and again divided. by teethstanding nearer and nearer the plane of the wheel, until the pomace isat last forced out between the head G and the wheel D, which arenearlyin contact with each other, thus being ground as fine as may be desired.The walls of the hopper-inlets 6 rest their lower edges on the upperface of the wheel, and the rear edge, f, of each inlet serves as ascraper to turn the pomace of the other mill off from the wheel into thetrough E. The edges f may be provided with shoes of leather or iron toprevent wear.

J is an arm of the wheel D, upon which a lever, K, is secured by aclevis, L, to attach the team to for revolving the wheel. The upperportion of the wheel bears directly against the hub but all that annularportion 0 below the flange is enlarged, in order that the Wheel may beplaced down over the flange in putting the machine together, and,further, to allow a space for the pomace which gathers in the recess tofall below.

What I claim as my invention, and desire to secure by Letters Patent, is

1. The combination, with a stationary hub and grinding-surfacesprojecting beyond the hub and supported thereon, of a wheel journaled torevolve on said hub, cogs loosely fitted in said wheel, and means,substantially as described, for raising and lowering the cogs, for thepurpose specified.

2. The combination,with the stationary hub B and the spiral flanges a,fixed thereon, of the radially-slotted wheel D and the cogs G, fitted toslide in said slots, and notched to ride upon the flanges a, as and forthe purpose specified.

3. The combination,with the stationary hub substantially as described,for raising and lowering the cogs, of the radial teeth (I, fixed uponthe hub B, substantially as shown and described.

4. The combination, with a slotted wheel, cogs fitted therein, andmeans, substantially as described, for raising and lowering said cogs,of a series of teeth gradually decreasing in height, radially fixedrelatively to the said cogged wheel, as and for the purpose specified.

5. The combination, with the stationary hub B, the slotted wheel D, thecogs O, loosely fitted therein, means for raising or falling said cogs,and means fofopposing them with a stationary grinding device, of thehopper F, having two inlets, e, to the mill, said hopper resting on theWheel D, and provided with the scraping-edges f, as and for the purposespecified.

6. The combination, with the slotted wheel D, of the cogs O, fittedtherein, and means, substantially as described, for operating the same,the walls of said slots being recessed, as and for the purposespecified.

CHARLES CAMERON BURNER.

